The Difference Between Accretionary Lapilli and Pumice Lapilli Is That

question 5

Multiple Choice

The difference between accretionary lapilli and pumice lapilli is that ________.

• A) accretionary lapilli are always created in ash falls,whereas pumice lapilli are created in pyroclastic flows
• B) accretionary lapilli are formed when ash mixes with water in the air.
• C) accretionary lapilli are always felsic to intermediate,whereas pumice lapilli are always mafic
• D) accretionary lapilli are formed at stratovolcanoes,while pumice lapilli are formed at cinder cones

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Definitions:

Supercontinent

A large landmass that includes more than one continental core, which in Earth's history has periodically merged and then broken apart.

Gondwana

Name given by geologists to the hypothetical combination of the southern continents into a single large supercontinent.

Tethys

Refers to an ancient ocean that existed between the continents of Gondwana and Laurasia before the opening of the Indian and Atlantic oceans.

Magnetism

A physical property of materials that respond to the magnetic field, often resulting from the motion of electric charges.